1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 1991-2000, 2003 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/types.h>
30 #include <netinet/in.h>
31
32 #ifdef _LITTLE_ENDIAN
33 uint32_t
34 htonl(uint32_t in)
35 {
36 uint32_t i;
37
38 i = (uint32_t)((in & (uint32_t)0xff000000) >> 24) +
39 (uint32_t)((in & (uint32_t)0x00ff0000) >> 8) +
40 (uint32_t)((in & (uint32_t)0x0000ff00) << 8) +
41 (uint32_t)((in & (uint32_t)0x000000ff) << 24);
42 return (i);
43 }
44
45 uint32_t
46 ntohl(uint32_t in)
47 {
48 return (htonl(in));
49 }
50
51 uint16_t
52 htons(uint16_t in)
53 {
54 register int arg = (int)in;
55 uint16_t i;
56
57 i = (uint16_t)(((arg & 0xff00) >> 8) & 0xff);
58 i |= (uint16_t)((arg & 0xff) << 8);
59 return ((uint16_t)i);
60 }
61
62 uint16_t
63 ntohs(uint16_t in)
64 {
65 return (htons(in));
66 }
67
68 #else /* _LITTLE_ENDIAN */
69
70 #if defined(lint)
71
72 uint32_t
73 htonl(uint32_t in)
74 {
75 return (in);
76 }
77
78 uint32_t
79 ntohl(uint32_t in)
80 {
81 return (in);
82 }
83
84 uint16_t
85 htons(uint16_t in)
86 {
87 return (in);
88 }
89
90 uint16_t
91 ntohs(uint16_t in)
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1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <sys/types.h>
27 #include <netinet/in.h>
28
29 /*
30 * htonll(), ntohll(), htonl(), ntohl(), htons(), ntohs()
31 *
32 * On little endian machines these functions reverse the byte order of the
33 * input parameter and returns the result. This is to convert the byte order
34 * from host byte order (little endian) to network byte order (big endian),
35 * or vice versa.
36 *
37 * On big endian machines these functions just return the input parameter,
38 * as the host byte order is the same as the network byte order (big endian).
39 */
40
41
42 #ifdef _LITTLE_ENDIAN
43 uint64_t
44 htonll(uint64_t in)
45 {
46 return ((uint64_t)htonl((in >> 32) & 0xffffffff) |
47 ((uint64_t)htonl(in & 0xffffffff) << 32));
48 }
49
50 uint64_t
51 ntohll(uint64_t in)
52 {
53 return ((uint64_t)ntohl((in >> 32) & 0xffffffff) |
54 ((uint64_t)ntohl(in & 0xffffffff) << 32));
55 }
56
57 uint32_t
58 htonl(uint32_t in)
59 {
60 uint32_t i;
61
62 i = (uint32_t)((in & (uint32_t)0xff000000) >> 24) +
63 (uint32_t)((in & (uint32_t)0x00ff0000) >> 8) +
64 (uint32_t)((in & (uint32_t)0x0000ff00) << 8) +
65 (uint32_t)((in & (uint32_t)0x000000ff) << 24);
66 return (i);
67 }
68
69 uint32_t
70 ntohl(uint32_t in)
71 {
72 return (htonl(in));
73 }
74
75 uint16_t
76 htons(uint16_t in)
77 {
78 register int arg = (int)in;
79 uint16_t i;
80
81 i = (uint16_t)(((arg & 0xff00) >> 8) & 0xff);
82 i |= (uint16_t)((arg & 0xff) << 8);
83 return ((uint16_t)i);
84 }
85
86 uint16_t
87 ntohs(uint16_t in)
88 {
89 return (htons(in));
90 }
91
92 #else /* _LITTLE_ENDIAN */
93
94 #if defined(lint)
95 uint64_t
96 htonll(uint64_t in)
97 {
98 return (in);
99 }
100
101 uint64_t
102 ntohll(uint64_t in)
103 {
104 return (in);
105 }
106
107 uint32_t
108 htonl(uint32_t in)
109 {
110 return (in);
111 }
112
113 uint32_t
114 ntohl(uint32_t in)
115 {
116 return (in);
117 }
118
119 uint16_t
120 htons(uint16_t in)
121 {
122 return (in);
123 }
124
125 uint16_t
126 ntohs(uint16_t in)
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